When it debuted in 2002, the Buick Rendezvous crossed over all the lines that had previously separated sedans, minivans, and sport-utility vehicles.Rendezvous was, and is, a perfect example of the new category of crossover vehicles, a category that defies categorization.The Rendezvous combines aspects of SUVs, minivans, and wagons.Just don't call it a minivan or a wagon. Rendezvous is a versatile vehicle seating five to seven passengers.Its styling is nice.It has fine manners on the highway, a benefit of unit-body construction normally associated with sedans.Four-wheel-drive is available to cope with gnarly weather and marginal off-highway tracks with dignity.